Method of manufacturing heat exchanger pipe
OwnerSung-Hwan CHOIinventor
Life of this patent
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Abstract
The present invention relates to a heat exchanger pipe enabling heat exchange between fluid flowing through the pipe and fluid existing outside the pipe, and a method of manufacturing the heat exchanger pipe. In particular, the present invention relates to a heat exchanger pipe that improves a heat exchange rate by making flow of fluid through the pipe more active and increasing a contact amount, that has an improved contact characteristic and a sealing characteristic between an outer pipe and an insert inserted in the outer pipe in the process of manufacturing, and that is easily manufactured; and a method of manufacturing the heat exchanger pipe.
Claims7
A method of manufacturing a heat exchanger pipe comprising an outer pipe formed in a cylindrical shape and a first half shell and a second half shell each having a semi-cylinder shape, the method comprising:
- an insert preparation process of placing the first half shell and the second half shell on ends on an upper bed having the same diameter as the first half shell and the second half shell combined to face each other;
- an outer pipe preparation process of placing the outer pipe on end on a lower bed having a larger diameter than the upper bed and supporting a bottom of the upper bed such that the first half shell and the second half shell are inserted in the outer pipe;
- a pressing-preparation process of disposing a dice mold having a tapered portion at a lower portion therein and having a pressing portion over the tapered portion therein-a diameter of a lower end of the tapered portion is the same as an outer diameter of the outer pipe and a diameter of the pressing portion is the same as a diameter of an assembly of the first half shell and the second half shell-over the outer pipe;
- and
- a pressing process of pressing the outer pipe with the pressing portion such that the inner circumferential surface of the outer pipe comes in close contact with the outer circumferential surfaces of the first half shell and the second half shell by moving down the dice mold such that the outer pipe is fitted in the dice mold and then by further moving down the dice mold.
Dependencies are inferred from the claim text.